-70.51% is the change from 729 to 215
Calculation steps:
[( 215 - 729 ) ÷ 729] x 100 = -70.51%
Formula
Percentage change = [(215 - 729) / 729] x 100
Subtract the new number by the original number
215 - 729 = -514
-514 ÷ 729 = -0.7050754458161865
-0.7050754458161865 x 100 = -70.51%